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Investigation of properties of nanobridge Josephson junctions and superconducting tracks fabricated by FIB

Li, B; Godfrey, T; Cox, D; Li, T; Gallop, J; Galer, S; Nisbet, A; ... Hao, L; + view all (2018) Investigation of properties of nanobridge Josephson junctions and superconducting tracks fabricated by FIB. Journal of Physics: Conference Series , 964 (1) , Article 012004. 10.1088/1742-6596/964/1/012004. Green open access

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Abstract

An important requirement across a range of sensitive detectors is to determine accurately the energy deposited by the impact of a particle in a small volume. The particle may be anything from a visible photon through to an X-ray or massive charged particle. We have been developing nanobridge Josephson junctions based SQUIDs and nanoSQUID devices covering the entire range of particle detection energies from 1eV to MeV. In this paper we discuss some developments in nanobridge Josephson junctions fabrication using focussed ion beam (FIB) and how these developments impact future applications. We focus on tuning of the transition temperature of a superconducting thin-film absorber, with the aim to match the absorber Tcto the working temperature range of the SQUID and also on using a new Xe FIB to improve Josephson junction and superconducting film quality.

Type: Article
Title: Investigation of properties of nanobridge Josephson junctions and superconducting tracks fabricated by FIB
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/1742-6596/964/1/012004
Publisher version: http://dx.doi.org/10.1088/1742-6596/964/1/012004
Language: English
Additional information: Content from this work may be used under the terms of theCreative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10054658
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